High-voltage large-current impulse current generator

Abstract

The utility model discloses a high-voltage large-current impulse current generator which comprises a protection box, the front end of the protection box is provided with an accommodating cavity, and a generator body is arranged in the accommodating cavity; two damping assemblies are arranged at the lower end of the generator body, and auxiliary supporting assemblies are arranged on the two sides of the protection box. The movable plate is arranged below the generator body, vibration generated in the working process is effectively absorbed and dispersed through the damping assembly, the noise level of equipment is greatly lowered, part looseness and abrasion caused by vibration are reduced, and the service life of the equipment is prolonged; due to the design of the auxiliary supporting assembly, extra supporting force is provided for the equipment, the stability of the structure is further enhanced, it is ensured that the equipment is kept stable in the working process, and the accuracy and reliability of testing are improved; miniaturization of the size and light weight are achieved, and the problems existing in an existing high-voltage large-current impact current generator are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of current generators, and particularly relates to a high-voltage and large-current impulse current generator. Background Art

[0002] In today's society, as the cornerstone for driving economic prosperity and daily life convenience, the power supply system has an expanding application scope, and its demands have become diversified and complex. This trend has promoted the rapid development of power supply technologies. Among them, the generator technology dedicated to the power supply testing field is particularly important. The lightning surge generator, as a key device in electromagnetic compatibility testing, is designed to cope with the high-energy transient interference caused by switch switching and natural lightning strikes. Its high reliability ensures the accuracy and credibility of test results. Such generators are widely used to evaluate the performance of various electronic devices, such as power lines, internal connection lines, and surge protection components (such as lightning arrester resistors, varistors, discharge tubes, SPDs, etc.) in extreme transient environments, providing an important basis for improving the immunity and stability of products.

[0003] However, there is a significant problem commonly existing in the high-voltage and large-current surge generators on the existing market: their huge volume not only restricts portability but also increases the complexity of transportation and deployment; in addition, these devices often generate significant mechanical vibrations during operation. The long-term accumulation will not only cause annoying noise pollution but also may exacerbate the loosening and wear of internal components, thus seriously affecting the operation efficiency and service life of the devices. Therefore, how to design a high-voltage and large-current impulse current generator that not only has high performance but also takes into account portability, stability, and low-noise characteristics has become a technical problem to be solved urgently at present. Summary of the Invention

[0004] The purpose of the utility model is to provide a high-voltage and large-current impulse current generator to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-voltage and large-current impulse current generator includes a protective box; a receiving cavity is opened at the front end of the protective box, and a generator body is arranged in the receiving cavity; a movable plate is arranged at the lower end of the generator body, and two groups of shock-absorbing components are symmetrically installed below both ends of the movable plate; receiving grooves are respectively opened on the outer walls of both sides of the protective box, and auxiliary support components are arranged in the receiving grooves, and the auxiliary support components are movably connected to the lower ends of the receiving grooves.

[0007] Preferably, the shock-absorbing component includes a backing plate, and the backing plate is fixedly connected to the bottom of the receiving cavity; a damping buffer is arranged at the upper end of the backing plate, and the top end of the piston rod of the damping buffer is fixedly connected to the movable plate.

[0008] Preferably, first shock absorbers are symmetrically installed on both sides of the damping buffer, wherein the upper ends of the first shock absorbers are fixedly connected to the bottom of the movable plate, and the lower ends of the first shock absorbers are fixedly connected to the backing plate.

[0009] Preferably, a support plate is provided below the movable plate, and both ends of the support plate are fixedly connected to the damping buffer respectively.

[0010] Preferably, the auxiliary support assembly includes a connecting seat, and the connecting seat is fixedly connected to the lower end of the receiving groove; an "L"-shaped rotating arm is provided at the front end of the connecting seat, and the top end of one side of the "L"-shaped rotating arm is hinged to the connecting seat through a pin shaft; the top end of the other side of the "L"-shaped rotating arm is hinged to a first support arm through a pin shaft, and the corner of the "L"-shaped rotating arm is hinged to a second support arm through a pin shaft; a triangular support frame is provided at one end of the first support arm and the second support arm away from the "L"-shaped rotating arm, and the triangular support frame is respectively hinged to the first support arm and the second support arm.

[0011] Preferably, second shock absorbers are provided on the outer sides of the first support arm and the second support arm, and one end of the second shock absorber is movably connected to the first support arm, and the other end of the second shock absorber is movably connected to the second support arm.

[0012] Preferably, feet are provided at the lower end of the triangular support frame, and rubber gaskets are provided at the bottom of the feet.

[0013] Preferably, locking universal wheels are respectively installed at the four corners of the bottom of the protective box, and a pull rod is provided at the rear end of the protective box.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: By designing a compact protective box structure and installing locking universal wheels and a pull rod at the bottom of the protective box, the whole device is more convenient during transportation and deployment, significantly improving the portability of the device; A movable plate is arranged below the generator body, and the shock absorption assembly effectively absorbs and disperses the vibration generated during the working process, greatly reducing the noise level of the device and reducing the loosening and wear of parts caused by vibration, thereby prolonging the service life of the device; The design of the auxiliary support assembly not only provides additional support force for the device, but also further enhances the structural stability, ensuring that the device remains stable during the working process, improving the accuracy and reliability of the test; Through reasonable layout and structural design, while maintaining high performance, the whole device realizes miniaturization of volume and light weight, effectively solving the problems existing in the existing high-voltage large-current impulse current generator, improving the portability, stability, shock absorption and noise reduction performance and protection performance of the device, and providing a more efficient and reliable test device for the power test field. Description of the Drawings

[0015] Figure 1is a schematic structural view of the present utility model;

[0016] Figure 2 is a schematic structural view of the connection between the generator body and the shock absorption assembly of the present utility model;

[0017] Figure 3a 、 3b is a schematic structural view of the shock absorption assembly of the present utility model;

[0018] Figure 4 is a schematic structural view of the auxiliary support assembly of the present utility model.

[0019] Wherein: 1. protective box; 2. accommodating cavity; 3. generator body; 4. movable plate; 5. shock absorption assembly; 501. backing plate; 502. damping buffer; 503. first shock absorber; 6. storage groove; 7. auxiliary support assembly; 701. connecting seat; 702. "L"-shaped rotating arm; 703. first support arm; 704. second support arm; 705. triangular support frame; 706. second shock absorber; 8. support plate; 9. support feet; 10. rubber gasket; 11. locking universal wheel; 12. pull rod. Specific embodiments

[0020] The following further describes the present utility model in detail with reference to the drawings.

[0021] Please refer to Figures 1 to 4 For achieving the above object, the present utility model provides the following technical solutions:

[0022] A high-voltage and large-current impulse current generator includes a protective box 1, which serves as the external protection housing of the entire device and has the characteristics of being firm and durable; a accommodating cavity 2 is provided at the front end of the protective box 1, and a generator body 3 is arranged in the accommodating cavity 2 to protect the generator body 3 from interference and damage from the external environment; the generator body 3 is the core component of the device, responsible for generating high-voltage and large-current impulse currents, used to simulate extreme transient conditions such as lightning strikes, and conduct surge tests and detections on test objects; a movable plate 4 is arranged at the lower end of the generator body 3, and two groups of shock absorption assemblies 5 are symmetrically installed below both ends of the movable plate 4; the movable plate 4 is installed at the lower end of the generator body 3 and serves as a connection bridge between the shock absorption assembly 5 and the generator body 3, and the design of the movable plate 4 enables the shock absorption assembly 5 to effectively absorb and disperse the vibrations generated during the operation of the device; storage grooves 6 are respectively provided on the outer walls of both sides of the protective box 1, and an auxiliary support assembly 7 is arranged in the storage grooves 6, and the auxiliary support assembly 7 is movably connected to the lower end of the storage grooves 6; the auxiliary support assembly 7 is connected by hinges and pins to form a foldable and deployable support structure, and when needed, the auxiliary support assembly 7 can be pulled out and deployed from the storage grooves 6 to increase the overall stability and support force of the device.

[0023] In use, first move the device to the test area for convenient transportation and positioning through the locking universal wheels 11 and the pull rod 12 at the bottom of the protective box 1; then, adjust the state of the auxiliary support assembly 7 according to the test requirements, pull it out from the storage groove 6 and expand it to the appropriate position to enhance the stability of the device; turn on the power of the device and start the generator body 3, and the generator body 3 begins to generate impulse currents with high voltage and large current to simulate extreme transient conditions such as lightning strikes; then connect the surge protection device or circuit to be tested to the output end of the generator body 3. Under the action of the generator body 3, the object to be tested will be subjected to a simulated impact of high-energy transient interference. By observing and recording the performance of the object to be tested during the test, its immunity and stability in extreme environments can be evaluated; after the test is completed, turn off the generator body 3 and cut off the power. Fold the auxiliary support assembly 7 and retract it into the storage groove 6 for the storage and transportation of the device.

[0024] Please refer to Figure 3a 、 3b As an embodiment of the present utility model, the shock absorption assembly 5 includes a backing plate 501, wherein the backing plate 501 is fixedly connected to the bottom of the accommodating cavity 2; a damping buffer 502 is provided at the upper end of the backing plate 501, and the top end of the piston rod of the damping buffer 502 is fixedly connected to the movable plate 4; two first shock absorbers 503 are symmetrically installed on both sides of the damping buffer 502, and the upper end of the first shock absorber 503 is fixedly connected to the bottom of the movable plate 4, and the lower end of the first shock absorber 503 is fixedly connected to the backing plate 501.

[0025] In the above solution, the backing plate 501 is the basic part of the shock absorption assembly 5. The backing plate 501 is fixedly connected to the bottom of the accommodating cavity 2 of the protective box 1, providing a stable support surface for carrying the damping buffer 502 and the subsequent connected components; the damping buffer 502 is installed at the upper end of the backing plate 501 and is one of the core components of the shock absorption assembly 5. The damping buffer 502 is filled with damping medium inside, and the shock is absorbed and slowed down by the up and down movement of its piston rod. The top end of the piston rod is fixedly connected to the movable plate 4. When the movable plate 4 (i.e., the part below the generator body 3) is vibrated, it will drive the piston rod of the damping buffer 502 to move, and then the damping medium will flow in the cylinder body and generate a damping force, thereby consuming the shock energy; the first shock absorbers 503 are symmetrically installed on both sides of the damping buffer 502 to further enhance the shock absorption effect. The first shock absorbers 503 are usually made of a combination of elastic elements such as springs or rubber and damping elements. The upper end of the first shock absorber 503 is fixedly connected to the bottom of the movable plate 4, and the lower end is fixedly connected to the backing plate 501. When the movable plate 4 is vibrated, the first shock absorbers 503 can not only absorb part of the shock energy through the deformation of their elastic elements, but also further consume the shock energy through the friction and viscous resistance of the damping elements.

[0026] Furthermore, through the combined action of the damping buffer 502 and the first shock absorber 503, the vibration energy is effectively absorbed and dispersed in multiple directions, which helps to reduce the direct impact of vibration on the generator body 3 and its surrounding components, improving the overall stability of the device; the presence of the shock absorption assembly 5 enables the device to operate more smoothly during operation, reducing the noise and wear caused by vibration, and extending the service life of the device; at the same time, the stable operating environment also helps to improve the accuracy and reliability of the test results, preventing problems such as component loosening, fracture or failure caused by vibration, and ensuring the normal operation of the device under extreme conditions and the accuracy of the test results.

[0027] Please refer to Figure 3b , as an embodiment of the present utility model, a support plate 8 is provided below the movable plate 4, and both ends of the support plate 8 are fixedly connected to the damping buffer 502 respectively.

[0028] In the above-mentioned solution, the support plate 8, as the support structure below the movable plate 4, significantly enhances the rigidity of the entire shock absorption system. When the device is operating, even if it is subjected to large vibrations, the support plate 8 can provide a stable supporting force to prevent the movable plate 4 from undergoing excessive deformation or displacement, thereby protecting the safety of the generator body 3 above; the support plate 8 evenly distributes the weight of the movable plate 4 and the components above to the damping buffer 502, avoiding component damage or failure caused by excessive single-point force; at the same time, this way of distributing the load also helps to improve the overall performance and service life of the shock absorption system; through the fixed connection with the damping buffer 502, the support plate 8 can more efficiently guide the vibration energy transmitted from the movable plate 4 into the damping buffer 502 for consumption, and this connection method ensures the smooth operation of the shock absorption system and improves the shock absorption efficiency.

[0029] Please refer to Figure 4 , as an embodiment of the present utility model, the auxiliary support assembly 7 includes a connection seat 701, and the connection seat 701 is fixedly connected to the lower end of the receiving groove 6; the front end of the connection seat 701 is provided with an "L"-shaped rotating arm 702, and one side top end of the "L"-shaped rotating arm 702 is hinged to the connection seat 701 through a pin shaft; the other side top end of the "L"-shaped rotating arm 702 is hinged with a first support arm 703 through a pin shaft, and the corner of the "L"-shaped rotating arm 702 is hinged with a second support arm 704 through a pin shaft; a triangular support frame 705 is provided at the end of the first support arm 703 and the second support arm 704 away from the "L"-shaped rotating arm 702, and the triangular support frame 705 is respectively hinged to the first support arm 703 and the second support arm 704.

[0030] In the above-described solution, the connection base 701 serves as the basic part of the entire auxiliary support assembly 7. The connection base 701 is fixedly connected to the lower end of the storage groove 6 of the protective box 1. The connection base 701 provides the functions of support and connection, enabling the auxiliary support assembly 7 to be stably installed on the protective box 1. At the front end of the connection base 701, there is an "L"-shaped rotating arm 702. The top of one side of the rotating arm is hinged to the connection base 701 through a pin shaft, realizing the flexible rotation of the rotating arm. This design allows the auxiliary support assembly 7 to be deployed and retracted as needed to adapt to different usage scenarios. The other side of the "L"-shaped rotating arm 702 is respectively hinged with a first support arm 703 and a second support arm 704 through pin shafts. The first support arm 703 and the second support arm 704 together with the rotating arm form the main support structure of the auxiliary support assembly 7. When the auxiliary support assembly 7 is deployed, the first support arm 703 and the second support arm 704 will extend outward to provide additional support force for the device. At the ends of the first support arm 703 and the second support arm 704 away from the "L"-shaped rotating arm 702, there are triangular support frames 705. The triangular support frames 705 are respectively hinged to the first support arm 703 and the second support arm 704, forming a stable triangular structure. This structure has excellent stability and load-bearing capacity, and can effectively disperse and bear the weight and vibration from the device.

[0031] Furthermore, when the device is not in use, the auxiliary support assembly 7 can be stored in the storage groove 6 of the protective box 1 to reduce the occupied space and facilitate transportation. When the auxiliary support assembly 7 is needed, the "L"-shaped rotating arm 702 can be rotated and the first support arm 703 and the second support arm 704 can be deployed, and the triangular support frame 705 can be placed in a suitable position to achieve the support and stabilization effect on the device. The auxiliary support assembly 7 provides additional stability for the device through its stable triangular structure and strong support force. When the device generates vibration or is affected by external forces during operation, the auxiliary support assembly 7 can effectively disperse and bear these forces, preventing the device from shaking or tipping over. Since the auxiliary support assembly 7 has a flexible deployment and retraction function, it can adapt to different usage scenarios and requirements. Whether in a laboratory, a factory or an outdoor environment, the stability of the device can be achieved by adjusting the deployment degree and angle of the auxiliary support assembly 7. The existence of the auxiliary support assembly 7 not only enhances the stability of the device, but also plays a role in protecting the safety of the device. It prevents damage or accidents caused by the shaking or tipping over of the device, ensuring the safety and reliability of the device during long-term operation.

[0032] Please refer to Figure 4, as an embodiment of the present utility model, a second shock absorber 706 is provided on the outer sides of the first support arm 703 and the second support arm 704, wherein one end of the second shock absorber 706 is movably connected to the first support arm 703, and the other end of the second shock absorber 706 is movably connected to the second support arm 704.

[0033] In the above-mentioned solution, the second shock absorber 706 is installed on the outer sides of the first support arm 703 and the second support arm 704. Such a layout helps to provide an additional shock-absorbing effect when the auxiliary support assembly 7 is unfolded; one end of the second shock absorber 706 is movably connected to the first support arm 703, and the other end is movably connected to the second support arm 704. This movable connection method allows the shock absorber to flexibly expand and contract when subjected to vibrations, thereby effectively absorbing and dispersing the vibration energy.

[0034] Furthermore, when the device generates vibrations during operation, these vibrations are transmitted to the auxiliary support assembly 7. Due to the presence of the second shock absorber 706, it can quickly respond and absorb the vibration energy from the device or the external environment. The damping medium inside the second shock absorber 706 generates a damping force when being squeezed, thereby consuming the vibration energy and reducing the impact of vibrations on the device; the second shock absorber 706 not only absorbs the vibration energy, but also disperses the load to the first support arm 703 and the second support arm 704 through its movable connection method. This way of dispersing the load helps to reduce the stress on a single component and improve the load-bearing capacity and stability of the entire auxiliary support assembly 7; when the auxiliary support assembly 7 is unfolded, the second shock absorber 706 and the first support arm 703 and the second support arm 704 together form a stable support structure. This structure can effectively resist external interference and vibrations, ensuring that the device can maintain a stable state during operation; at the same time, the presence of the shock absorber also reduces the noise and wear generated by vibrations and extends the service life of the device.

[0035] Please refer to Figure 4 , as an embodiment of the present utility model, feet 9 are provided at the lower end of the triangular support frame 705, and a rubber gasket 10 is provided at the bottom of the feet 9.

[0036] In the above-described solution, the support leg 9 serves as the contact point between the triangular support frame 705 and the ground or other support surfaces. Its main function is to provide stable support. The support leg 9 effectively transfers the weight of the auxiliary support assembly 7 and the equipment to the ground, preventing shaking or tipping caused by uneven weight distribution or external interference. The design of the support leg 9 usually takes into account the principle of pressure dispersion. By increasing the contact area with the ground, the pressure generated by the weight of the equipment is evenly distributed on the ground, avoiding damage to the ground caused by excessive single-point pressure. The rubber gasket 10 has excellent shock absorption and noise reduction performance. When the equipment generates vibrations during operation, the rubber gasket 10 can effectively absorb and disperse these vibration energies, reducing the impact of vibrations on the surrounding environment. At the same time, it can also reduce the noise generated by vibrations, improving the overall operating quality of the equipment. The rubber gasket 10, as a buffer layer between the support leg 9 and the ground, can protect the ground from the direct impact of the equipment weight and vibrations, which helps to extend the service life of the ground and reduce the wear and damage to the ground caused by the operation of the equipment. The surface of the rubber gasket 10 usually has a certain roughness, which helps to increase the friction between the support leg 9 and the ground. When the equipment is subjected to external forces, this increased friction can provide better stability and prevent the equipment from sliding or shifting.

[0037] Please refer to Figure 1 , as an embodiment of the present utility model, locking universal wheels 11 are respectively installed at the four corner positions of the bottom of the protective box 1, and a pull rod 12 is provided at the rear end of the protective box 1.

[0038] In the above-described solution, the locking universal wheels 11 allow the protective box 1 to move freely in multiple directions. Whether it is moving forward, backward or turning in a straight line, it can be easily handled. This design enables users to easily push or pull the protective box 1 when it needs to be moved, without the need for strenuous handling. In addition to the moving function, the universal wheels also have a locking function. When the protective box 1 needs to be fixed in a certain position, users can lock the wheels through the locking mechanism to prevent the protective box 1 from accidentally moving. The setting of the pull rod 12 further enhances the portability of the protective box 1. Users can drag the entire protective box 1 by grasping the pull rod 12, without directly carrying the heavy box body, thus reducing the physical burden. The combined use of the locking universal wheels 11 and the pull rod 12 enables the protective box 1 to be easily and conveniently moved when needed, and to remain stable and immovable when needed. This design together constitutes an efficient and convenient moving and fixing system, providing great convenience and flexibility for the use of the protective box 1.

[0039] Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that these are only illustrative examples, and the protection scope of the present utility model is defined by the appended claims. Without departing from the principle and essence of the present utility model, those skilled in the art can make various changes or modifications to these embodiments, but such changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A high voltage and high current impulse current generator, comprising a protection box (1); characterized in that: The front end of the protection box (1) is provided with a receiving chamber (2), wherein a generator body (3) is provided in the receiving chamber (2); a movable plate (4) is provided at the lower end of the generator body (3), wherein two groups of shock absorbing components (5) are symmetrically installed below the two ends of the movable plate (4); the outer walls of both sides of the protection box (1) are respectively provided with receiving grooves (6), wherein an auxiliary support component (7) is provided in the receiving groove (6), and the auxiliary support component (7) is movably connected to the lower end of the receiving groove (6).

2. A high voltage and high current impulse current generator according to claim 1, characterized in that: The shock absorbing assembly (5) comprises a pad (501), wherein the pad (501) is fixedly connected to the bottom of the accommodating chamber (2); a damping buffer (502) is provided at the upper end of the pad (501), wherein a movable plate (4) at the top end of the piston rod of the damping buffer (502) is fixedly connected.

3. A high voltage and high current impulse current generator according to claim 2, characterized in that: The damping buffer (502) is symmetrically provided with first shock absorbers (503), wherein the upper end of the first shock absorber (503) is fixedly connected to the bottom of the movable plate (4), and the lower end of the first shock absorber (503) is fixedly connected to the pad (501).

4. A high voltage and high current impulse current generator according to claim 1, characterized in that: A support plate (8) is provided below the movable plate (4), wherein two ends of the support plate (8) are respectively fixedly connected to the damping buffer (502).

5. A high voltage and high current impulse current generator according to claim 1, characterized in that: The auxiliary support assembly (7) comprises a connecting seat (701), wherein the connecting seat (701) is fixedly connected to the lower end of the storage slot (6); an "L"-shaped rotating arm (702) is provided at the front end of the connecting seat (701), wherein the top end of one side of the "L"-shaped rotating arm (702) is hinged to the connecting seat (701) via a pin; the top end of the other side of the "L"-shaped rotating arm (702) is hinged to a first support arm (703) via a pin, wherein a second support arm (704) is hinged to a corner of the "L"-shaped rotating arm (702) via a pin; a triangular support frame (705) is provided at one end of the first support arm (703) and the second support arm (704) away from the "L"-shaped rotating arm (702), wherein the triangular support frame (705) is respectively hinged to the first support arm (703) and the second support arm (704).

6. A high voltage and high current impulse current generator according to claim 5, characterized in that: A second shock absorber (706) is provided on the outer sides of the first support arm (703) and the second support arm (704), wherein one end of the second shock absorber (706) is movably connected to the first support arm (703), and the other end of the second shock absorber (706) is movably connected to the second support arm (704).

7. A high voltage and high current impulse current generator according to claim 5, characterized in that: The lower end of the triangular support frame (705) is provided with a support foot (9), wherein a rubber gasket (10) is provided at the bottom of the support foot (9).

8. A high voltage and high current impulse current generator according to claim 1, characterized in that: Locking universal wheels (11) are respectively installed at the four corners of the bottom of the protection box (1), and a pull rod (12) is provided at the rear end of the protection box (1).

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